John Deere 7710 VS John Deere 8420 specs comparison

John Deere 7710

General Infos

Make	John Deere
Model	7710
Country	United states
Production	From 1997  Until 2003
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 7710 Manual

Dimensions, sizes and tires

AG front tires	11.00-16
AG rear tires	18.4-38
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	12352 lbs or 5602 kg
Length	173 inches [439 cm]
Width	110 inches [279 cm]
Height	117 inches [297 cm]
Wheelbase	110.2 inches [279 cm]
Ground clearance	-
Turning radius	-
Rear tread size	60 to 85.7 inches
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	496 ci or 8.1 L
Cylinders	6 cylinders
Engine power	155 hp or 115.6 kW
Engine RPM	2100 (rpm)
Torque	522 lb-ft or 707.8 Nm
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	71.5 gal or 270.6 L
Oil capacity	25 qts or 23.7 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 7710 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	140 amps

Clutch and gearbox specs

Trans system	John Deere PowrQuad
Trans type	partial power shift
Trans gears	20 forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	power
Braking system	hydraulic wet disc
Cabin type	Cab standard
Differentiel lock	-

Hydraulics specifications

System	closed-center pressure flow compensated
Valves	2 to 5
Pump flow	-
SVC flow	26 gpm or 98.4 lpm
Steering flow	-
Tank capacity	-
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	123.87 hp or 92.4 kW
Fuel consumption	8.2 gal/hour or 31.0 l/hour
Pulling power	19,685 lbs or 8929 kg

Power take-off (PTO) specs

Claimed power	135 hp or 100.7 kW
Real power	137.85 hp or 102.8 kW
Engine @RPM	540@2100 (rpm)
PTO Clutch	hydraulic wet discs
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	8.2 gal/hour or 31.0 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	3N/2
Rear hitch lift	8,925 lbs or 4048 kg
Front hitch	-
Front hitch lift	-

John Deere 8420

General Infos

Make	John Deere
Model	8420
Country	United states
Production	From 2002  Until 2005
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 8420 Manual

Dimensions, sizes and tires

AG front tires	16.9R30
AG rear tires	18.4R46
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	21,650 lbs or 9820 kg
Length	211.9 inches [538 cm]
Width	-
Height	122.2 inches [310 cm]
Wheelbase	118.9 inches [302 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	60 to 80 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	496 ci or 8.1 L
Cylinders	6 cylinders
Engine power	314 hp or 234.1 kW
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	electronic high-pressure common rail (HPCR)
Fuel tank size	160 gal or 605.6 L
Oil capacity	28.5 qts or 27.0 L
Oil change	250 h
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 8420 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	150 amps

Clutch and gearbox specs

Trans system	John Deere PowerShift
Trans type	full power shift
Trans gears	16 forward and 4 reverse
Clutch system	hydraulic wet disc

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard
Differentiel lock	-

Hydraulics specifications

System	closed center pressure-flow compensated
Valves	4 to 5
Pump flow	-
SVC flow	30 gpm or 113.6 lpm
Steering flow	-
Tank capacity	37 gal or 140.0 L
Hydraulic pressure	2900 psi or 200.0 bar
Max flow	33.5 gpm or 126.8 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	207.49 hp or 154.7 kW
Fuel consumption	13.6 gal/hour or 51.5 l/hour
Pulling power	29,964 lbs or 13591 kg

Power take-off (PTO) specs

Claimed power	235 hp or 175.2 kW
Real power	235.45 hp or 175.6 kW
Engine @RPM	540@1975 (rpm)
PTO Clutch	hydraulic wet discs
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	13.7 gal/hour or 51.9 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III/IIIN
Rear hitch lift	15180 lbs or 6885 kg
Front hitch	IIIN
Front hitch lift	11000 lbs or 4989 kg

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